How can I get the widget called "vtkMRMLSliceIntersectionWidget" in python?

sliceViewLabel = "Red"
sliceViewWidget =
displayableManager = sliceViewWidget.sliceView().displayableManagerByClassName("**vtkMRMLScalarBarDisplayableManager**")
w = displayableManager.GetWindowLevelWidget()

as showed the code to get window&level ViewWidget is available in python.
but when I try to get vtkMRMLSliceIntersectionWidget , I can’t find api in doc, can any help me? when this step finished, the left mouse clice_and_drag to shift between 2d pic will be finished